Improvements in an adjustable box and adapter are disclosed for mounting a junction box directly to a stud, between studs, and to a ceiling using an adaptor and adjusting the position of said junction box. The junction box can be secured to the adaptor using screws. Longitudinal slots on the adaptor allow the adjustment of the position of the junction box along the adaptor by loosening the screws. The screws can be tightened or loosened using the screwheads or attachments on the screws, thereby allowing the adjustment of the junction box from both within the junction box and outside the junction box.